Electrode Substrate and Display Device Including the Same

a technology of display device and substrate, applied in non-linear optics, instruments, optics, etc., can solve the problems of image display quality decline, achieve desirable image display quality, suppress luminance difference, and reduce image display quality

Inactive Publication Date: 2008-04-24
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] The present invention has been made in view of the problem that the image display quality decreases due to these parasitic capacitors, and has an object to suppress the occurrence of the luminance difference among horizontal lines (horizontal stripes) and to thereby realize a desirable image display quality.

Problems solved by technology

Therefore, there occurs a luminance non-uniformity among rows (horizontal stripes), thus decreasing the image display quality.

Method used

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  • Electrode Substrate and Display Device Including the Same
  • Electrode Substrate and Display Device Including the Same
  • Electrode Substrate and Display Device Including the Same

Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

[0055]FIG. 1 is a schematic plan view showing an active matrix substrate 100 of Embodiment 1.

[0056]FIG. 2 is an equivalent circuit diagram of the active matrix substrate 100.

[0057]FIG. 3 is a partial plan view showing the active matrix substrate 100.

[0058]FIG. 4 is a schematic cross-sectional view showing a portion cut out along cut line A-B-C in FIG. 3.

[0059]FIG. 5 is a schematic cross-sectional view showing a portion cut out along cut line D-E in FIG. 3.

[0060]FIG. 6 is a schematic cross-sectional view showing a portion cut out along cut line F-Gin FIG. 3.

[0061] The active matrix substrate 100 of Embodiment 1 includes a gate driver 2 and a source driver 3. A plurality of gate bus lines 4 extend in parallel to one another from the gate driver 2. A plurality of source bus lines 5 extend in parallel to one another from the source driver 3 so as to cross the gate bus lines 4 (typically at right angles) in a display section 1. Each of the source bus lines 5 meanders in a rectangul...

embodiment 2

[0111]FIG. 9 is a partial plan view showing an active matrix substrate 200 of Embodiment 2.

[0112]FIG. 10 is a plan view for illustrating the positional relationship between a pixel electrode 207 and a storage capacitor element 209.

[0113] The active matrix substrate 200 includes a plurality of gate bus lines 204 extending in parallel to one another, and a plurality of source bus lines 205 extending in parallel to one another so as to cross the gate bus lines 204 (typically at right angles). Each of the source bus lines 205 meanders in a rectangular wave pattern.

[0114] A TFT 206 is provided in the vicinity of each of the intersections between the gate bus lines 204 and the source bus lines 205. The TFT 206 is electrically connected to both the gate bus line 204 and the source bus line 205, and one end thereof is connected to the pixel electrode 207 via a drain electrode 216. The pixel electrodes 207 are arranged in a delta arrangement.

[0115] The TFT 206 is connected to a semicondu...

embodiment 3

[0119]FIG. 11 is a partial plan view showing an active matrix substrate 300 of Embodiment 3.

[0120]FIG. 12 is a plan view for illustrating the positional relationship between a pixel electrode 307 and a storage capacitor element 309.

[0121] The active matrix substrate 300 includes a plurality of gate bus lines 304 extending in parallel to one another, and a plurality of source bus lines 305 extending in parallel to one another so as to cross the gate bus lines 304 (typically at right angles). Each of the source bus lines 305 meanders in a rectangular wave pattern.

[0122] A TFT 306 is provided in the vicinity of each of the intersections between the gate bus lines 304 and the source bus lines 305. The TFT 306 is electrically connected to both the gate bus line 304 and the source bus line 305, and one end thereof is connected to the pixel electrode 307 via a drain electrode 316. The pixel electrodes 307 are arranged in a delta arrangement.

[0123] The TFT 306 is connected to a semicond...

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Abstract

A first electrode substrate of the present invention includes a first signal line, a second signal line, a third signal line, a first pixel electrode, a second pixel electrode, and a third pixel electrode. The first signal line, the second signal line and the third signal line extend in a first direction and in parallel to one another. The first pixel electrode is electrically connected to the first signal line. The second pixel electrode is adjacent to the first pixel electrode in the first direction, and is electrically connected to the second signal line. The third pixel electrode is adjacent to the second pixel electrode in the row direction, crossing the first direction, via the second signal line therebetween, and is electrically connected to the third signal line. A capacitance value of a parasitic capacitor formed between the first pixel electrode and the second pixel electrode is smaller than a capacitance value of a parasitic capacitor formed between the first pixel electrode and the third pixel electrode.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an electrode substrate and a display device including the same. [0003] 2. Description of the Related Art [0004] Types of liquid crystal display devices that are operated by an active matrix driving method include color liquid crystal display devices using active matrix substrates (electrode substrates). A color liquid crystal display device includes an active matrix substrate, a counter substrate opposing the active matrix substrate and including a common electrode, a liquid crystal layer interposed between the substrates, and a color filter provided on the common electrode side. The color filter includes red (R) regions, green (G) regions and blue (B) regions arranged in a predetermined arrangement so that each region corresponds to one of a plurality of pixel electrodes provided on the active matrix substrate. An R region forms a red (R) pixel, a G region a green (G) pixel, and a B...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02F1/1333G02F1/1343
CPCG02F1/1345G02F2001/13606G02F1/136213G02F1/13606
Inventor INA, KEIICHIYOSHIDA, KEISUKESHIRAKI, ICHIRONAKAJIMA, MUTSUMI
Owner SHARP KK
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